打开App
360P
六年级奥数：水和纯酒精比为4:6，加上20g纯酒精后3:7，求加水？
六上数学+奥数78/136
App15:23
App03:32
App03:40
App11:03
App04:04
App11:19
App07:16
App10:14
App07:24
App07:27
App03:28
App06:22
App05:59
App03:46
App07:39
App03:04
App03:05![六年级奥数：详细讲解分母是三个自然数相乘的裂项计算[乘1N]](http://p3-sign.bdxiguaimg.com/tos-cn-i-0026/osgftABaEt0BC7AlWtGuSIQbycAHtztQSAhQAA~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250117090410E237D0302B3E2EDEAE9C&requestFrom=704&version_code=80402&x-expires=1768611850&x-signature=qs3ucwTO%2BTNOr%2BTPMplI4eG978g%3D)
App05:21
App03:37
App07:02
App13:27
App11:09
App03:09
App10:47
App03:52
App03:25
App04:13
App03:06
App05:29
App02:34
App04:14打开App观看
![化德县气象台发布道路结冰黄色预警[III级/较重]](http://p26-sign.bdxiguaimg.com/tos-cn-p-0015/ogifOFkfAmJ7PDl8Qk0BxmabDtEBfO3GADC5IN~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20250117090410E237D0302B3E2EDEAE9C&requestFrom=101&x-expires=1768611850&x-signature=%2FgFs1qos8xYEDtAG8E4LESlqvj4%3D)
![垫江县气象台发布大雾黄色预警[Ⅲ级/较重]](http://p26-sign.bdxiguaimg.com/tos-cn-p-0015/o0Isf9Q9HjBXuoGFIAemL5AQD7I72t9dEfe7fH~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20250117090410E237D0302B3E2EDEAE9C&requestFrom=101&x-expires=1768611850&x-signature=9FSenVINJodmlQFaFqe4o50zJEo%3D)
